Nut-wrench.



No.847,596. PATENTED'MAR'. 19, 1907.

' r A. L. MoMURTRY.

NUT WRENCH.

APPLICATION FILED NOV. 14', 1906.

wimp strArEs PATENT OFFICE.

Y ALDEN- L. McMURTRY,OF NEW YORK,-N. Y.

I NUT-WRENCH;

nut-wrench of my invention is to provide a of such construction as to be capable of applying nuts to bolts and withdrawin them therefrom in the usual way, \but whlch, in addition, is provided with a chamber or magazine-socket which receives plurality of nuts w 'ch may be applied successively from the socket to the same or. differ- .ent bolts. So far as I am aware a nut-wrench constructed to accomplish these results is entirely new with me.

The accompanying drawing shows one suitable construction convenient for different classes of work.

Figure 1 is an elevation, with a part broken away, of a nut-wrench equipped withmy improvements and applied to an ordinary brace; Fig. 2, a transverse section on the line 2 2 of Fig. 1 and looking downward; Fig. 3, a longitudinal section of the wrench with its appurtenances, some parts being omitted inorder to better illustrate other parts; Fig. 4, an endview of the nut-engaging portion of the wrench; and Fig. 5, an elevation of a bolt, a washer, and a nut applied thereto.

A wrench constructed in accordance with my invention may be operated in any suitable way. I have shown it applied to an ordinary brace a, the upper portion 1) of the wrench being adapted to fit the socket in the I line gin Fig.3..

bracein the usual manner. tion 0 of the wrench ispreferably cylindrical and is provided with a chamber adapted to receive a plurality of nuts from the nut-engaging end f of the wrench, to correspond with the nuts which it receives, and this general shapeis preferably maintained throughout a suitable part of the length of the chamber, as indicated by the When the wrench is applied to a nut on a bolt and'is revolved, the nut enters the chamber, and after one nut is withdrawn from a bolt the Wrench may be applied to a nut on another bolt to Withdraw the nut therefrom, the first-mentionednut' being forced farther intothechamber. y In this way a plurality of Specification of Letters Patent. Applioation filed November 14, 1906. Serial No. 343,314.

15 jfrom the nut-enga ing end of the wrench av The body por- .Which is shaped Patented March 19, 1907.

nuts may be withdrawn and stored. A spring (1 is preferably arranged in the nut-re ceiving chamber, and the nuts enter. the chamber against the force of this sprin which therefore tends to expel them. 1 pre erably employ devices for retaining the nuts in the chamber,but which may be of such construction that they may be operated to release the nuts at the proper times. For this purpose I have in this instance shown spring-arms h, terminating in jaws "i, that overlap the nut-engaging end 'of the wrench.

The end faces of the jaws i, are preferably I curved or inclined, as shown, so that when the wrench is applied to a nut pressure on the end faces of the jaws against the face ofthe nut will throw the jaws. outwardly, permitting the nut to be engaged by the end of the wrench and to enter the nut-receiving chamber. After the nut is thus received the jaws automatically spring back to their normal position to retain the nut 1n the chamber.

If the bolts are provided with crowned or convex washers j, as shown in Fig. 5, ressure of the jaws upon the washer in app yingthe nut throws the jaws outwardly and mits the nut in being screwed upon the olt to leave the socket; but to provide for the positive movement of the jaws rovisionis' made for-moving them outwar y by hand. Preferablyfo-r this purpose the sprin -arms h are formed with outwardlyeincline parts 7c, against which work the inclined or wedgeshaped faces m of rods n, attached to a slidmg rin 0 and extending therefrom to a slid ing col ar t to projections on which they are hin ed at q. As shown, a coiled spr1ng 1'- wit in the sleeve 1) abuts at one end against the sleeve ang at the other end 1 against a ring .9, secure .to the body 0 of the wrench. By pressing the sleeve p toward the nut-engaging end of the wrench the retaining-jaws '5 maybe moved outwardly, but -will auto-' matically return tonormal position when the sleeve 19 is released.

As a base or sup ort for the nuts introduced into the socet there may be em:

plo ed a nut t, secured to a short bolt '11., whichis flush with the outer face of the nut,

but which preferably projects for a short distance into the spring, as shown in Fig. 3.

I have shown a simple-and eflicient way of embodying my invention both broadly considered and as containing such features as will illustrate the best way now known .to me of carrying out my invention and of applying I it to different classes of work. The invention may, however, be embodied in other forms and yet retain the ca acity or adaptability to the mode of use w ich is of the gist of the invention, uite aside from any of the specific forms in w '(h the invention may be embodied by those skilled in the mechanical arts.

I claim as my invention 1. A nut-wrench having a rotatable socket adapted to fit over and revolve nuts adapted to be used with it and of a depth to successively receive and retain a plurality of nuts as they are unscrewed by the wrench from their bolts and means for retaining such a plurality, of nuts in the socket and permitting their successive application to bolts by the wrench.

2'. A nut-wrench having a nut-engaging socket, a chamber which freely receives a plurality of nuts from the socket and which is provided with devices for holding the nuts in the chamber. I

3. A nut-wrench having a chamber which receives a Iplurality of nuts from the nut-engagin em of the wrench, which is )rovided with evices forholding the nuts in t e chamber and has means for releasing said devices.

4. A nut-wrench having a nut-engaging socket, a chamber which receives a lurality of nuts from the socket, and which is provided with devices engaging a nut in the socket for holding the remaining nuts in the chamber.

5. A nut-wrench having a nut-engaging socket, a chamber which freely receives a plurality of nuts from the socket, devices;

for holding the nuts in the chamber and means within the chamber tending to .force the nuts outward against said holding devlces.

socket, a chamber which receives a plurality of nuts, means within the chamber tending 6. A nut-wrench having a nut-engaging I inga plurality of nuts, means for retaining the nuts in the chamber and means for autoy matically forcing the nuts successively into the nut-engaging portion of the wrench as other nuts are withdrawn therefrom.

8. A nut-wrench having'a chamber which receives a plurality of nuts as they are withdrawn from bolts by the wrench and means for supplying the contained nuts successively to the nut-engaging end of the wrench to he applied to bolts thereby.

9. A nut-wrench having a chamber which receives a plurality of nuts, a spring tending to force the nuts outward, nut-retaining jaws normally acting to retain the nuts in the chamber, and means for moving the jaws outwardly to permit the nuts to leave the chamber.

10. A nut-wrench having a chamber which receives a plurality of nuts, means for ejecting the nuts from the-chamber, s wing-acting jaws for retaining the nuts in the chamber, against the force of said ejecting means, the outer faces of which are inclined for the purpose specified. v

11. A nut-wrench having a chamber which receives a plurality of nuts, means tending to eject the nuts from the chamber and springacting nut-retaining jaws, the outer faces of which are inclined inwardly while their inner faces are reversely inclined for the purpose specified.

In testimony whereof I have hereunto subscribed my name.

.ALDEN L. MeMURTRY. Witnesses:

PERCY L. BARRY, Baron A., FREY. 

